A dryer grain discharge section drive system

Abstract

The utility model belongs to grain drying technical field discloses a kind of drying machine discharging section transmission system, driving motor is installed in the middle part of the top end of one side of base, first discharging auger is installed in the left side of driving motor, first discharging auger left upper end is installed with first grain wheel, right upper end is installed with second grain wheel;Driving motor right side is installed with second discharging auger, second discharging auger left upper end is installed with third grain wheel, right upper end is installed with fourth grain wheel;First grain wheel and second grain wheel upper end, third grain wheel and fourth grain wheel upper end are all installed with grain distribution plate, transverse auger is installed in the lower end of driving motor, corner motor is connected in the right side of transverse auger, grain collector is installed in the central lower end of transverse auger;First discharging auger rear end is installed with extension shaft, speed reducer is installed in the middle part of the top end of the other side of base, and driving motor is respectively located in the both ends of base.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of grain drying technology, and particularly relates to a grain discharge section transmission system for a dryer. Background Technology

[0002] As a crucial component of grain drying equipment, the grain discharge section of a dryer plays a vital role in uniformly and continuously conveying the dried grain to the next processing stage. The reliability, stability, and operational efficiency of its transmission system directly determine the overall production efficiency, grain quality, and operational continuity of the machine. In large-scale grain drying operations, the discharge section must adapt to the conveying needs of different grain varieties (such as corn, wheat, and rapeseed) and grains with varying moisture contents. It must achieve precise control of the discharge speed and coordinated operation of multiple components. Therefore, the structural design and performance of the transmission system become one of the core factors restricting the overall technical level of the dryer.

[0003] Currently, the mainstream dryer discharge section transmission system in the industry generally adopts a multi-motor independent drive scheme. This involves configuring multiple motors to drive key actuators such as the discharge wheel and conveying screw. A typical structure often uses four independent motors to meet the synchronous transmission requirements of multiple discharge wheels. The initial design intention was to achieve speed adjustment of each component through independent control to adapt to the discharge requirements under different working conditions. However, in practical applications, it has revealed many unavoidable technical defects. From a structural perspective, the multi-motor configuration requires a corresponding number of mounting bases, reducers, couplings, and electrical control systems, resulting in an extremely complex mechanical and electrical structure of the transmission system. This not only increases the difficulty of manufacturing and assembly but also occupies more storage space, hindering the miniaturization and integration design of the equipment. From an operational reliability perspective, the failure points of a multi-motor system increase exponentially. The motors themselves, electrical terminals, and transmission connectors are all vulnerable parts. Furthermore, the synchronous drive of four motors is susceptible to factors such as backlash nonlinearity and load disturbances, leading to a decrease in synchronization performance between motors. This, in turn, causes problems such as uneven discharge and material jamming, affecting the continuity of drying operations. More importantly, the maintenance costs of traditional multi-motor drive systems remain high: troubleshooting requires inspecting each motor and its components individually, and repairs involve complex mechanical disassembly and assembly, which is not only time-consuming and labor-intensive but may also affect the precision of other components due to improper disassembly and assembly. At the same time, the large number of motors increases the workload of daily maintenance, further raising the operating and maintenance costs of the equipment and making it difficult to meet the demands of modern agricultural production for efficient and low-consumption equipment. These problems result in significant shortcomings in the existing drive system regarding structural simplification, fault control, and ease of maintenance, hindering the performance upgrade of the grain discharge section of the dryer.

[0004] The closest prior art is the self-flowing grain discharge device for a grain dryer (CN217200957U). This prior art discloses a grain dryer discharge structure with an inclined self-flowing bottom plate within the frame. The upper end of the bottom plate corresponds to the grain inlet, and the lower end corresponds to the discharge outlet. The grain mainly falls due to its own gravity. A nylon deflector is installed at the discharge outlet, driven by a motor to rotate and assist the grain in being discharged. The nylon deflector includes a spindle and multiple evenly distributed deflector plates, which are either straight or curved. The advantage of this design is that it reduces the mechanical screw conveying of grain in a wet state, reducing mechanical contact with the grain, thereby "effectively reducing the breakage rate of grain materials" and mitigating damage.

[0005] However, this existing technology still has some obvious technical problems, mainly including: 1. Limited grain discharge method and weak control over grain flow: Relying solely on gravity sliding and simple wheel assistance, it is impossible to achieve active and precise control over grain flow. Especially for grains with high moisture content, uneven particle size, or easy sticking, accumulation, poor flow, uneven grain discharge, or even blockage of the discharge port may occur during sliding and flow, reducing grain discharge efficiency.

[0006] 2. Limited grain discharge efficiency and non-centralized grain output: The self-flowing plate and the wheel are only responsible for "falling and assisting discharge". The discharged grain is often in a scattered state, which is not conducive to subsequent unified collection and transportation. If unified collection is required, additional devices are needed, which may increase the system complexity and installation space.

[0007] 3. Simple structure but insufficient functionality, unable to meet the drying needs of large flow and high throughput: This grain discharge method is suitable for small batch and low discharge dryers, but it cannot guarantee the grain discharge speed and stability for large-scale and high-yield drying systems, making it difficult to meet the needs of modern large-scale grain drying scenarios.

[0008] 4. Although grain breakage is reduced, the release of wet grains relies on gravity, which can easily cause unstable grain flow: when the grains have high moisture content and stick to each other, the sliding of the self-flowing plate may be difficult, and the release aid of the wheel may be insufficient. The overall grain discharge process lacks stable and reliable power transmission, making it difficult to achieve continuous and rapid grain discharge.

[0009] Therefore, although the existing technology has contributed to reducing grain breakage rate, it lacks active transport and centralized control of grain flow, and its grain discharge efficiency, adaptability, and flow control capabilities are all weak, making it unsuitable for modern high-flow, continuous, and high-efficiency grain drying and discharge systems. Utility Model Content

[0010] In view of the problems existing in the prior art, this utility model provides a transmission system for the grain discharge section of a dryer.

[0011] This utility model is implemented as follows: a dryer grain discharge section transmission system. The dryer grain discharge section transmission system provided in this embodiment includes a drive motor, a first discharge auger, a second discharge auger, a first grain-discharging wheel, a second grain-discharging wheel, a third grain-discharging wheel, a fourth grain-discharging wheel, a rotary motor, a grain-separating plate, a grain collector, a reducer, an extension shaft, and a transverse auger. The drive motor is installed at the top center of one side of the base. The first discharge auger is installed to the left of the drive motor. The first grain-discharging wheel is installed at the upper left end of the first discharge auger, and the first grain-discharging wheel is installed at the upper right end. The second feed roller; a second discharge auger is installed on the right side of the drive motor, a third feed roller is installed on the upper left end of the second discharge auger, and a fourth feed roller is installed on the upper right end; grain distribution plates are installed on the upper ends of the first and second feed rollers, and on the upper ends of the third and fourth feed rollers; a transverse auger is installed at the lower end of the drive motor, a corner motor is connected to the right side of the transverse auger, and a grain collector is installed at the lower center of the transverse auger; an extension shaft is installed at the rear end of the first discharge auger, and a reducer is installed in the middle part of the top of the other side of the base, located at both ends of the base along with the drive motor.

[0012] Furthermore, the transverse auger is divided into left and right parts, with forward spiral blades installed on the left side and reverse spiral blades installed on the right side.

[0013] Furthermore, the drive motor drives the first and second discharge augers to rotate via sprocket transmission. The other end of the first discharge auger drives the grain feeding wheel to rotate and discharge the grain through the extension shaft and reducer, thus exporting the dried grain from each bin. Furthermore, the second discharge auger drives the transverse auger to operate after the rotation motor changes the transmission direction. The transverse auger gathers the grains discharged from both sides towards the middle through the forward and reverse spiral blades and conveys them to the grain collector.

[0014] Furthermore, the drive motor drives the first discharge auger to rotate on one side and the second discharge auger to rotate on the other side. The sprocket of the second discharge auger is connected to the sprocket of the corner motor, and the corner motor changes the transmission direction to drive the transverse auger to rotate.

[0015] Furthermore, a sprocket is mounted on the extension shaft at the other end of the first discharge auger. This sprocket is connected to the high-speed end of the reducer, and the low-speed end of the reducer is connected to the sprocket drive of the four grain feeding wheels.

[0016] Furthermore, the grain feeding wheels are staggered, with four grain feeding wheels installed in the grain discharge area at the bottom of the drying chamber. They receive power from the grain discharge auger at the base through a reducer to assist in grain discharge and even distribution.

[0017] Furthermore, the grain-dispensing wheel consists of 5 wheel sections connected in series, with the grain-dispensing plates on each wheel section arranged in a staggered 30° pattern to form a "short-line contact" grain-dispensing structure, thus achieving flexible grain dispensing.

[0018] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows: Traditional dryer discharge structures mostly use a single auger or gravity discharge, resulting in a single discharge path and uncontrollable grain flow. This makes them prone to accumulation and blockage when handling wet grains or high flow rates. Furthermore, they cannot achieve coordinated discharge and centralized transfer, leading to low discharge efficiency and insufficient continuous operation capacity. In existing structures, the grain-distributing rollers are only used as auxiliary components, lacking a systematic transmission logic with the auger and grain collection mechanism. This leads to a broken power chain and inconsistent discharge rhythm. This invention integrates a drive motor, dual discharge augers, a transverse auger, four grain-distributing rollers, a grain separating plate, a grain collector, a reducer, and an extension shaft to form a complete power system, creating a closed discharge route of longitudinal conveying → transverse convergence → centralized discharge. This structure achieves modularization, multi-point drive, and integrated bidirectional grain conveying and collection output in the drying section's discharge system. This eliminates reliance on unidirectional conveying or gravity sliding for discharge capacity, maintaining stable conveying capacity even when handling high-moisture grains, significantly improving the continuity of discharge operations and industrial-grade operational intensity.

[0019] Existing unidirectional spiral augers can only push material to one side, causing the grain flow to deviate and accumulate, which is not conducive to centralized output in the middle, resulting in uneven grain collection, unbalanced load on the downstream elevator, and even material stagnation on one side. This utility model adopts a left-right segmented design, with a forward spiral on the left and a reverse spiral on the right, forming a bidirectional pushing flow, which allows the grain flow on both sides to automatically converge to the center, achieving natural aggregation. It eliminates the need for additional flow guiding machinery, improves the uniformity of feeding, ensures stable load at the inlet of the central grain collector, and realizes streamlined and concentrated grain discharge, which is conducive to the expansion of large-capacity drying systems.

[0020] Traditional double-auger grain discharge systems often suffer from asynchronous power and inconsistent rotation speeds, leading to chaotic discharge rhythms and large fluctuations in grain layer thickness. This new invention uses a sprocket synchronous drive to fix and lock the two augers in phase. The structural matching transmission ensures consistent discharge frequency, resulting in stable and linear grain flow and creating a balanced material source foundation for lateral confluence at the rear.

[0021] Traditional grain conveying systems can only transport grain in a straight line. To achieve transverse conveying, a separate drive system is required, resulting in structural expansion and increased energy consumption. In this invention, the second auger is directly driven by a rotary motor, allowing the power chain to flow continuously without the need for a new drive source. This improves the compactness of the mechanism and enables the longitudinal and transverse conveying lines to merge directly.

[0022] Existing grain discharge equipment cannot independently drive the two material discharge paths, resulting in unadjustable material discharge volume and cycle time. This utility model achieves independent power for the left and right augers through a branching structure, which can match the discharge volume requirements of different compartments and make the equipment compatible with multiple drying rhythms.

[0023] Traditional grain feeding mechanisms are often limited by space constraints, requiring separate drives and resulting in complex structures. This invention addresses this by using an extended shaft to directly output power to a reducer, which then distributes power to the feeding wheel. This allows the feeding wheel to share the main drive with the auger, achieving centralized power output.

[0024] Traditional grain-discharging wheels have few wheels and a short coverage area, making it easy for grain to remain in areas that are not fully discharging. This new design features four wheels arranged laterally across the grain discharge area, increasing the contact surface for grain discharge and making the discharge more stable.

[0025] Traditional fixed-discharge grain feeding methods easily crush and break grains. This new type of five-section, 30° staggered point-contact wheel reduces pressure and disperses contact, achieving flexible grain feeding and reducing damage. Attached Figure Description

[0026] Figure 1 This is a perspective view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of a dust collection and discharge device for a grain dryer provided in an embodiment of this utility model; Figure 3 This is a front view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 4 This is a rear view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 5 This is a left view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 6 This is a right view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 7 This is a top view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 8 This is a bottom view of the dust collection and discharge device for a grain dryer provided in this embodiment of the utility model; Figure 9 This is a schematic diagram of a transverse auger provided in an embodiment of the present invention; In the diagram: 1. Drive motor; 2. First discharge auger; 3. Second discharge auger; 4. First grain feeder; 5. Second grain feeder; 6. Third grain feeder; 7. Fourth grain feeder; 8. Angle motor; 9. Grain distribution plate; 10. Grain collector; 11. Reducer; 12. Extension shaft; 13. Transverse auger. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0028] like Figure 1 , Figure 2 As shown, the dryer discharge section transmission system provided in this embodiment includes a drive motor 1, a first discharge auger 2, a second discharge auger 3, a first grain-discharging wheel 4, a second grain-discharging wheel 5, a third grain-discharging wheel 6, a fourth grain-discharging wheel 7, a rotary motor 8, a grain-separating plate 9, a grain collector 10, a reducer 11, an extension shaft 12, and a transverse auger 13. The drive motor 1 is installed at the top center of one side of the base. The first discharge auger 2 is installed on the left side of the drive motor 1. The first grain-discharging wheel 4 is installed at the upper left end of the first discharge auger 2, and the second grain-discharging wheel 5 is installed at the upper right end of the first discharge auger 2. The second discharge auger 3 is installed on the right side of the drive motor 1. The upper left end of the discharge auger 3 is equipped with a third grain feeder 6, and the upper right end is equipped with a fourth grain feeder 7. Grain distribution plates 9 are installed on the upper ends of the first grain feeder 4 and the second grain feeder 5, and on the upper ends of the third grain feeder 6 and the fourth grain feeder 7. The transverse auger 13 is installed at the lower end of the drive motor 1. The right side of the transverse auger 13 is connected to a corner motor 8. The grain collector 10 is installed at the lower center of the transverse auger 13, and the grain inlet of the grain collector 10 is connected to the middle grain outlet of the transverse auger 13. The rear end of the first discharge auger 2 is equipped with an extension shaft 12. The reducer 11 is installed at the middle part of the top of the other side of the base, and is located at both ends of the base, respectively, along with the drive motor 1.

[0029] The dryer's grain discharge section transmission system uses a drive motor 1 as its core power source, installed at the center of the top side of the base, forming the reference center for the entire machine's power. The left end of the drive motor 1 is connected to the first discharge auger 2 via a sprocket, and the right end is connected to the second discharge auger 3 via a sprocket. The two discharge augers are arranged symmetrically and extend parallel to the longitudinal direction of the dryer, forming a bidirectional grain discharge output structure. Grain distribution plates 9 are respectively arranged at the upper ends of the first and second grain feed rollers 4 and 5, and at the upper ends of the third and fourth grain feed rollers 6 and 7, to evenly disperse the grain flow from the upper drying chamber. A transverse auger 13 is located transversely at the bottom of the drive motor 1, serving as the transverse conveying channel for the overall grain flow. A grain collector 10 is installed at the center of its lower end to uniformly receive the grain falling from the discharge augers on both sides.

[0030] The first discharge auger 2 has a first grain-distributing wheel 4 at its upper left end and a second grain-distributing wheel 5 at its upper right end; the second discharge auger 3 has a third grain-distributing wheel 6 at its upper left end and a fourth grain-distributing wheel 7 at its upper right end. These four sets of grain-distributing wheels are evenly distributed along the upper side of the machine body. Through rotation, they achieve the functions of turning, pushing, and dispersing grain, preventing grain accumulation and maintaining continuous flow. The rear end of the first discharge auger 2 is extended and connected to an extension shaft 12, expanding the discharge range from the front to the rear, thus improving the discharge coverage and grain extraction capacity. The reducer 11 is installed at the top of the other side of the base, diagonally distributed with the drive motor 1. Both are located at opposite ends of the base, facilitating balanced arrangement on both sides and distribution of transmission load.

[0031] The drive motor 1 is connected to each auger via sprockets. When the drive motor 1 is turned on, it simultaneously drives the first discharge auger 2 and the second discharge auger 3 to rotate synchronously, ensuring continuous and stable grain discharge. The transverse auger 13 and the lower end of the discharge auger form a vertically intersecting assembly structure. Under the push of the grain feeding wheel, the grain falls into the transverse auger 13 through the auger outlet. Then, the corner motor 8 drives the right corner section of the transverse auger 13 to change the grain flow direction and achieve convergence and conveying. The grain collector 10 is located at the center of the lower end of the transverse auger 13 and directly receives the discharged grain through gravity drop, forming a complete grain receiving-transverse movement-output conveying chain.

[0032] During operation, drive motor 1 outputs power to two discharge augers, causing the grain to be discharged outward along the internal channels of the machine under the propulsive force of the augers' spiral. The first grain wheel 4, the second grain wheel 5, the third grain wheel 6, and the fourth grain wheel 7 continuously agitate and disperse the grain as the augers rotate, preventing clumping and ensuring a loose and flowing grain layer. The grain distribution plate 9 forms a guiding and diverting path at the top, ensuring that the falling grain is evenly distributed into the auger conveying area. After the grain is conveyed to the lower transverse auger 13, it is transversely conveyed to the target grain outlet under the drive of the corner motor 8, where it is collected by the grain collector 10, achieving rapid grain discharge, collection, and transfer after drying. The system uses drive motor 1 as the power core and multiple sets of grain wheels linked with the augers as the main actuators, forming a continuous, balanced, and highly efficient grain discharge operation process.

[0033] like Figure 3 , Figure 4 As shown, during the drying process, the drive motor 1 drives the first discharge auger 2 and the second discharge auger 3 to rotate via a sprocket drive. The other end of the first discharge auger 2 drives the grain feeding wheel to rotate and discharge grain through the extension shaft 12 and the reducer 11, thus exporting the dried grain from each bin. The second discharge auger 3 drives the transverse auger 13 to rotate after the transmission direction is changed by the angle motor 8. The transverse auger 13 gathers the grain exported from both sides to the middle through the forward and reverse spiral blades and transports it to the grain collector 10. Subsequently, the elevator transports the grain to the top of the drying bin to complete the cycle drying.

[0034] The drive motor 1 serves as the main power source of the system. It is connected to the first discharge auger 2 and the second discharge auger 3 via a sprocket, allowing the two longitudinal augers to be arranged parallel to each other inside the machine body, forming independent left and right grain discharge and conveying channels. The first discharge auger 2 is located on the left side of the machine body and is arranged in a straight line with the extension shaft 12, used to directly discharge dry grain from the left compartment. The second discharge auger 3 is located on the right side of the drive motor 1 for synchronous grain discharge. Its right end is connected to the angle motor 8 via a sprocket, realizing the conversion of power direction and connecting with the subsequent lateral conveying. The lateral auger 13 is arranged laterally at the bottom of the machine body, connecting with the outlets of the two discharge augers in a dropping manner, so that the grain is concentrated into a unified conveying path and finally flows into the grain collector 10 located at the bottom center.

[0035] After the drive motor 1 starts, the power is proportionally transmitted to the first discharge auger 2 and the second discharge auger 3 via the sprocket, causing the two augers to rotate synchronously and continuously. The grains move along the directional channel under the drive of the spiral blades. The tail end of the first discharge auger 2 is extended and connected to the extension shaft 12, and then coupled to the reducer 11 for output. This allows the reducer 11 to drive the grain feeding wheel to rotate continuously at a lower speed, achieving a high torque and stable grain discharge effect. The drive of the second discharge auger 3 is input to the transverse auger 13 after the transmission direction is changed by the angle motor 8, so that the power is transmitted longitudinally to laterally within one system, forming a linked grain conveying structure. All components are fastened to the frame through bearings, flanges, and other means to ensure high stability even under the high temperature and vibration environment of the dryer.

[0036] The spiral component inside the first discharge auger 2 pushes the dried grain outward along the machine body. The combination of the extension shaft 12 and the grain feeding wheel continuously feeds the grain towards the end of the bin and drops it to the left inlet of the transverse auger 13. The second discharge auger 3 operates synchronously and switches the power direction through the angle motor 8, discharging the grain into the right inlet of the transverse auger 13, realizing bidirectional grain inflow. The transverse auger 13 is equipped with forward and reverse spiral blades, so that the grain coming from the left and right sides is pushed towards the center at the same time. The grain grains gradually move towards the center during continuous agitation and pushing, and finally fall into the grain collector 10.

[0037] During system operation, drive motor 1 continuously outputs power, causing the first discharge auger 2 and the second discharge auger 3 to rotate synchronously, evenly discharging the dried grain. The first discharge auger 2, via the extension shaft 12 sprocket and the reducer 11 sprocket, drives the grain feeding wheel to discharge grain, thereby improving the discharge speed and consistency. After discharging grain, the second discharge auger 3 is driven by the angle motor 8 to steer the grain flow smoothly into the transverse auger 13. The forward and reverse spiral design of the transverse auger 13 causes the material to be bidirectionally compressed and aggregated and conveyed to the grain collector 10, and then lifted by an external elevator and returned to the top of the drying chamber for cyclic drying. The entire transmission system, with drive motor 1 as its core, completes a stable and continuous grain discharge and return conveying process through auger linkage, directional switching, and grain collection and aggregation, achieving efficient drying cycle operation.

[0038] like Figure 5 , Figure 6 As shown, the drive motor 1 transmits power in two paths via a sprocket: one path drives the first discharge auger 2 to rotate, and the other path drives the second discharge auger 3 to rotate. The sprocket of the second discharge auger 3 is connected to the sprocket of the angle motor 8. The angle motor 8 changes the transmission direction to drive the transverse auger 13 to rotate. The transverse auger 13 has a forward spiral blade on its left end and a reverse spiral blade on its right end, used to gather the grain discharged from the first discharge auger 2 and the second discharge auger towards the middle and transport it to the grain collecting device. Figure 7 , Figure 8 As shown, a sprocket is mounted on the extension shaft 12 at the other end of the first discharge auger 2. The sprocket is connected to the high-speed end of the reducer 11, and the reduction end of the reducer 11 is connected to the sprocket drive of the four grain feeding wheels.

[0039] The drive motor 1 is located at the bottom center of the system. Its output shaft is equipped with a double sprocket structure, which divides the power into two parallel paths through the sprockets. The first path directly drives the first discharge auger 2 to rotate, used for the discharge and propulsion of material on the left side. The second path drives the second discharge auger 3 and is connected to the angle motor 8 via a sprocket. After the angle motor 8 changes its direction of motion, it continues to output power to the transverse auger 13, enabling the auger power to achieve transverse turning and conveying based on longitudinal transmission. The transverse auger 13 adopts a symmetrical bidirectional conveying structure. Its left end is equipped with forward spiral blades, and its right end is equipped with reverse spiral blades, so that the grain flow from the first discharge auger 2 and the second discharge auger 3 is unified and converges in the middle, finally falling into the grain collection position for centralized discharge.

[0040] The tail end of the first discharge auger 2 extends into an extension shaft 12. A sprocket is mounted on the outer end of the extension shaft 12 and forms a chain drive connection with the high-speed end of the reducer 11. The reduction end of the reducer 11 then sequentially meshes with the sprockets of the second, third, and fourth feed rollers 5, and the first feed roller 4 for output. The reducer 11 is fixed to the right side plate of the dryer's base, its position symmetrically arranged with the drive motor 1, forming a balanced power transmission structure. This shortens the transmission link, improving power response efficiency and structural stability. The four feed rollers are distributed in the bottom discharge area of ​​the drying chamber, corresponding to the auger discharge port, to achieve secondary dispersing and even distribution of the discharged grain, preventing grain accumulation and ensuring smooth discharge.

[0041] The grain-dispensing wheels are staggered flexible grain-dispensing components, each consisting of 5 wheel sections connected in series. These sections are arranged axially to form a multi-contact, alternating grain-dispensing method. Each wheel section has dispensing plates staggered at 30 degrees along its outer edge. These plates create a gentle, short-line contact with the grain, effectively reducing breakage and improving grain distribution. During operation, the drive motor 1 drives the auger to discharge the grain. The grain flow enters the transverse auger 13 and is guided to the center by bidirectional blades, while the reducer 11 drives the dispensing wheels to gently sweep the grain, ensuring a more even and stable grain distribution. Finally, the grain smoothly enters the grain collection device to complete the grain discharge cycle. The entire system achieves an efficient, continuous, and clog-free safe grain discharge operation process through a clearly defined power path, diversion and re-convergence conveying, and flexible grain-dispensing assistance.

[0042] The grain-distributing wheels are staggered, with four wheels assembled at the bottom of the drying chamber's grain discharge area. They receive power from the base's grain discharge auger via a reducer 11 to assist in grain discharge and even distribution. Each grain-distributing wheel consists of five wheel sections connected in series, with the grain-distributing plates on each section staggered at 30°, forming a "short-line contact" grain-distributing structure for flexible grain distribution.

[0043] like Figure 9 As shown, the transverse auger 13 is divided into two parts, left and right. The left side is equipped with forward spiral blades, and the right side is equipped with reverse spiral blades.

[0044] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A transmission system for the grain discharge section of a dryer, characterized in that, The system includes a drive motor, a first discharge auger, a second discharge auger, a first grain feeding wheel, a second grain feeding wheel, a third grain feeding wheel, a fourth grain feeding wheel, a corner motor, a grain separating plate, a grain collector, a reducer, an extension shaft, and a transverse auger. The drive motor is located on the top of one side of the base. The left end of the drive motor is fixedly connected to the first discharge auger. The first grain feeding wheel is located at the upper left end of the first discharge auger, and the second grain feeding wheel is located at the upper right end of the first discharge auger. The right end of the drive motor is fixedly connected to the second discharge auger. The third grain feeding wheel is located at the upper left end of the second discharge auger, and the fourth grain feeding wheel is located at the upper right end of the second discharge auger. Grain separating plates are located at the upper ends of the first and second grain feeding wheels, and at the upper ends of the third and fourth grain feeding wheels. The transverse auger is located below the drive motor, and its right end is connected to the corner motor. The grain collector is located below the middle of the transverse auger. An extension shaft is located at the tail end of the first discharge auger. The reducer is installed on the top of the other side of the base and is arranged corresponding to the drive motor along both ends of the base.

2. The grain discharge section transmission system according to claim 1, characterized in that, The transverse auger consists of a left section and a right section. The left section is equipped with forward spiral blades, and the right section is equipped with reverse spiral blades.

3. The grain discharge section transmission system according to claim 1, characterized in that, The drive motor is connected to the first and second discharge augers via sprockets, and the sprocket assembly and the shafts of the two discharge augers are arranged in the same direction for transmission.

4. The grain discharge section transmission system according to claim 1, characterized in that, The second discharge auger sprocket is connected to the corner motor sprocket, and the output end of the corner motor and the transverse auger have a right-angle transmission structure.

5. The grain discharge section transmission system according to claim 1, characterized in that, The output end of the drive motor is equipped with dual drive sprockets, one of which is connected to the first discharge auger and the other is connected to the second discharge auger.

6. The grain discharge section transmission system according to claim 1, characterized in that, A sprocket is installed at the front end of the extension shaft. The sprocket is connected to the high-speed input shaft of the reducer via chain drive. The output end of the reducer is connected to four grain feeding wheels via chain drive.

7. The grain discharge section transmission system according to claim 1, characterized in that, Four grain feeding wheels are arranged laterally at intervals at the bottom of the drying chamber along the grain discharge section, corresponding to the output areas of the first and second discharge augers.

8. The grain discharge section transmission system according to claim 1, characterized in that, The grain-dispensing reel consists of five wheel sections assembled sequentially to form an integrated shaft structure, with the grain-dispensing plates on the outside of each wheel section arranged in a staggered pattern at 30 degrees along the axial direction.

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